Increase width of rules in ConTeXt

So that they align vertically with definition lists.

style_chmduquesne.tex

@@ -34,7 +34,7 @@ $endif$
 
 \setupwhitespace[medium]
 
-\setupblackrules[width=25mm, color=rulecolor]
+\setupblackrules[width=31mm, color=rulecolor]
 
 \setuphead[chapter]      [style=\tfd]
 \setuphead[section]      [style=\tfd\bf, color=titlegrey, align=middle]